While Alex Honnold has long been a legend in the outdoor community for his mastery of "free soloing"-- climbing without ropes or safety gear -- he became a household name following his historic 2017 ascent of El Capitan, a feat that earned him an Academy Award and global recognition.

Later today (well, tomorrow in Taiwan), "Free Solo" climber Alex Honnold will start his ascent on the 1,677-foot Taipei 101 skyscraper - without ropes - by carefully making his way up the tower's slab base.

Climber Alex Honnold has said he will celebrate scaling one of the world's tallest buildings by eating at its buffet with his wife.